Darn, SVN checked only modified stamps of the files, not the content.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@28427 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Stephan Aßmus
parent
c3a113e4b4
commit
1ecbbd9c27
@ -0,0 +1,518 @@
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/*
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* Copyright 2001-2008 Haiku, Inc.
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* Distributed under the terms of the MIT License.
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*
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* PS/2 mouse device driver
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*
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* Authors (in chronological order):
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* Elad Lahav (elad@eldarshany.com)
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* Stefano Ceccherini (burton666@libero.it)
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* Axel Dörfler, axeld@pinc-software.de
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* Marcus Overhagen <marcus@overhagen.de>
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* Clemens Zeidler <czeidler@gmx.de>
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*/
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/*
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* A PS/2 mouse is connected to the IBM 8042 controller, and gets its
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* name from the IBM PS/2 personal computer, which was the first to
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* use this device. All resources are shared between the keyboard, and
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* the mouse, referred to as the "Auxiliary Device".
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*
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* I/O:
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* ~~~
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* The controller has 3 I/O registers:
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* 1. Status (input), mapped to port 64h
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* 2. Control (output), mapped to port 64h
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* 3. Data (input/output), mapped to port 60h
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*
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* Data:
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* ~~~~
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* A packet read from the mouse data port is composed of
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* three bytes:
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* byte 0: status byte, where
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* - bit 7: Y overflow (1 = true)
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* - bit 6: X overflow (1 = true)
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* - bit 5: MSB of Y offset
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* - bit 4: MSB of X offset
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* - bit 3: Syncronization bit (always 1)
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* - bit 2: Middle button (1 = down)
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* - bit 1: Right button (1 = down)
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* - bit 0: Left button (1 = down)
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* byte 1: X position change, since last probed (-127 to +127)
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* byte 2: Y position change, since last probed (-127 to +127)
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*
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* Intellimouse mice send a four byte packet, where the first three
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* bytes are the same as standard mice, and the last one reports the
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* Z position, which is, usually, the wheel movement.
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*
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* Interrupts:
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* ~~~~~~~~~~
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* The PS/2 mouse device is connected to interrupt 12.
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* The controller uses 3 consecutive interrupts to inform the computer
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* that it has new data. On the first the data register holds the status
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* byte, on the second the X offset, and on the 3rd the Y offset.
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*/
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#include <string.h>
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#include <malloc.h>
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#include "kb_mouse_driver.h"
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#include "ps2_service.h"
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#include "ps2_standard_mouse.h"
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const char* kStandardMousePath[4] = {
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"input/mouse/ps2/standard_0",
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"input/mouse/ps2/standard_1",
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"input/mouse/ps2/standard_2",
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"input/mouse/ps2/standard_3"
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};
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const char* kIntelliMousePath[4] = {
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"input/mouse/ps2/intelli_0",
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"input/mouse/ps2/intelli_1",
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"input/mouse/ps2/intelli_2",
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"input/mouse/ps2/intelli_3"
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};
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/** Set sampling rate of the ps2 port.
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*/
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static inline status_t
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ps2_set_sample_rate(ps2_dev *dev, uint8 rate)
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{
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return ps2_dev_command(dev, PS2_CMD_SET_SAMPLE_RATE, &rate, 1, NULL, 0);
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}
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/** Converts a packet received by the mouse to a "movement".
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*/
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static void
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ps2_packet_to_movement(standard_mouse_cookie *cookie, uint8 packet[],
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mouse_movement *pos)
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{
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int buttons = packet[0] & 7;
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int xDelta = ((packet[0] & 0x10) ? ~0xff : 0) | packet[1];
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int yDelta = ((packet[0] & 0x20) ? ~0xff : 0) | packet[2];
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int xDeltaWheel = 0;
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int yDeltaWheel = 0;
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bigtime_t currentTime = system_time();
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if (buttons != 0 && cookie->buttons_state == 0) {
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if (cookie->click_last_time + cookie->click_speed > currentTime)
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cookie->click_count++;
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else
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cookie->click_count = 1;
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cookie->click_last_time = currentTime;
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}
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cookie->buttons_state = buttons;
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if (cookie->flags & F_pointing_dev_TYPE_INTELLIMOUSE) {
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yDeltaWheel = packet[3] & 0x07;
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if (packet[3] & 0x08)
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yDeltaWheel |= ~0x07;
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}
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/*
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if (cookie->flags & F_standard_mouse_TYPE_2WHEELS) {
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switch (packet[3] & 0x0F) {
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case 0x01: yDeltaWheel = +1; break; // wheel 1 down
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case 0x0F: yDeltaWheel = -1; break; // wheel 1 up
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case 0x02: xDeltaWheel = +1; break; // wheel 2 down
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case 0x0E: xDeltaWheel = -1; break; // wheel 2 up
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}
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}
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*/
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// TRACE("packet: %02x %02x %02x %02x: xd %d, yd %d, 0x%x (%d), w-xd %d, "
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// "w-yd %d\n", packet[0], packet[1], packet[2], packet[3],
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// xDelta, yDelta, buttons, cookie->click_count, xDeltaWheel,
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// yDeltaWheel);
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if (pos) {
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pos->xdelta = xDelta;
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pos->ydelta = yDelta;
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pos->buttons = buttons;
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pos->clicks = cookie->click_count;
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pos->modifiers = 0;
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pos->timestamp = currentTime;
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pos->wheel_ydelta = yDeltaWheel;
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pos->wheel_xdelta = xDeltaWheel;
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TRACE("ps2: ps2_packet_to_movement xdelta: %d, ydelta: %d, buttons %x, "
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"clicks: %d, timestamp %Ld\n",
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xDelta, yDelta, buttons, cookie->click_count, currentTime);
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}
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}
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/** Read a mouse event from the mouse events chain buffer.
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*/
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static status_t
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standard_mouse_read_event(standard_mouse_cookie *cookie,
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mouse_movement *movement)
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{
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uint8 packet[PS2_MAX_PACKET_SIZE];
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status_t status;
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TRACE("ps2: standard_mouse_read_event\n");
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status = acquire_sem_etc(cookie->standard_mouse_sem, 1, B_CAN_INTERRUPT, 0);
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TRACE("ps2: standard_mouse_read_event acquired\n");
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if (status < B_OK)
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return status;
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if (!cookie->dev->active) {
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TRACE("ps2: standard_mouse_read_event: Error device no longer "
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"active\n");
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return B_ERROR;
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}
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if (packet_buffer_read(cookie->standard_mouse_buffer, packet,
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cookie->dev->packet_size) != cookie->dev->packet_size) {
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TRACE("ps2: error copying buffer\n");
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return B_ERROR;
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}
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if (!(packet[0] & 8))
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panic("ps2: got broken data from packet_buffer_read\n");
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ps2_packet_to_movement(cookie, packet, movement);
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return B_OK;
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}
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void
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standard_mouse_disconnect(ps2_dev *dev)
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{
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// the mouse device might not be opened at this point
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INFO("ps2: ps2_standard_mouse_disconnect %s\n", dev->name);
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if (dev->flags & PS2_FLAG_OPEN)
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release_sem(((standard_mouse_cookie *)dev->cookie)->standard_mouse_sem);
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}
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/** Interrupt handler for the mouse device. Called whenever the I/O
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* controller generates an interrupt for the PS/2 mouse. Reads mouse
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* information from the data port, and stores it, so it can be accessed
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* by read() operations. The full data is obtained using 3 consecutive
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* calls to the handler, each holds a different byte on the data port.
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*/
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int32
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standard_mouse_handle_int(ps2_dev *dev)
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{
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standard_mouse_cookie *cookie = (standard_mouse_cookie*)dev->cookie;
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const uint8 data = dev->history[0].data;
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TRACE("ps2: standard mouse: %1x\t%1x\t%1x\t%1x\t%1x\t%1x\t%1x\t%1x\n",
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data >> 7 & 1, data >> 6 & 1, data >> 5 & 1,
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data >> 4 & 1, data >> 3 & 1, data >> 2 & 1,
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data >> 1 & 1, data >> 0 & 1);
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if (cookie->packet_index == 0 && !(data & 8)) {
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INFO("ps2: bad mouse data, trying resync\n");
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return B_HANDLED_INTERRUPT;
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}
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// Workarounds for active multiplexing keyboard controllers
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// that lose data or send them to the wrong port.
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if (cookie->packet_index == 0 && (data & 0xc0)) {
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INFO("ps2: strange mouse data, x/y overflow, trying resync\n");
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return B_HANDLED_INTERRUPT;
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}
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if (cookie->packet_index == 1) {
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int xDelta
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= ((cookie->packet_buffer[0] & 0x10) ? 0xFFFFFF00 : 0) | data;
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if (xDelta < -100 || xDelta > 100) {
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INFO("ps2: strange mouse data, x-delta %d, trying resync\n",
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xDelta);
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cookie->packet_index = 0;
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return B_HANDLED_INTERRUPT;
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}
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}
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if (cookie->packet_index == 2) {
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int yDelta
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= ((cookie->packet_buffer[0] & 0x20) ? 0xFFFFFF00 : 0) | data;
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if (yDelta < -100 || yDelta > 100) {
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INFO("ps2: strange mouse data, y-delta %d, trying resync\n",
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yDelta);
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cookie->packet_index = 0;
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return B_HANDLED_INTERRUPT;
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}
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}
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cookie->packet_buffer[cookie->packet_index++] = data;
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if (cookie->packet_index != dev->packet_size) {
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// packet not yet complete
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return B_HANDLED_INTERRUPT;
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}
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// complete packet is assembled
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cookie->packet_index = 0;
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if (packet_buffer_write(cookie->standard_mouse_buffer,
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cookie->packet_buffer, dev->packet_size) != dev->packet_size) {
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// buffer is full, drop new data
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return B_HANDLED_INTERRUPT;
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}
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release_sem_etc(cookie->standard_mouse_sem, 1, B_DO_NOT_RESCHEDULE);
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return B_INVOKE_SCHEDULER;
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}
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// #pragma mark -
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status_t
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probe_standard_mouse(ps2_dev * dev)
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{
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status_t status;
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uint8 deviceId = 0;
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// get device id
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status = ps2_dev_command(dev, PS2_CMD_GET_DEVICE_ID, NULL, 0, &deviceId, 1);
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if (status != B_OK) {
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INFO("ps2: probe_mouse get device id failed\n");
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return B_ERROR;
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}
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TRACE("ps2: probe_mouse device id: %2x\n", deviceId);
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// check for MS Intellimouse
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if (deviceId == 0) {
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uint8 alternate_device_id;
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status = ps2_set_sample_rate(dev, 200);
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status |= ps2_set_sample_rate(dev, 100);
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status |= ps2_set_sample_rate(dev, 80);
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status |= ps2_dev_command(dev, PS2_CMD_GET_DEVICE_ID, NULL, 0,
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&alternate_device_id, 1);
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if (status == 0) {
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TRACE("ps2: probe_mouse alternate device id: %2x\n",
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alternate_device_id);
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deviceId = alternate_device_id;
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}
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}
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if (deviceId == PS2_DEV_ID_STANDARD) {
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INFO("ps2: probe_mouse Standard PS/2 mouse found\n");
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dev->name = kStandardMousePath[dev->idx];
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dev->packet_size = PS2_PACKET_STANDARD;
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} else if (deviceId == PS2_DEV_ID_INTELLIMOUSE) {
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dev->name = kIntelliMousePath[dev->idx];
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dev->packet_size = PS2_PACKET_INTELLIMOUSE;
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INFO("ps2: probe_mouse Extended PS/2 mouse found\n");
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} else {
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INFO("ps2: probe_mouse Error unknown device id.\n");
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return B_ERROR;
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}
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return B_OK;
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}
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// #pragma mark -
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// Device functions
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status_t
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standard_mouse_open(const char *name, uint32 flags, void **_cookie)
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{
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standard_mouse_cookie *cookie;
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status_t status;
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ps2_dev *dev = NULL;
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int i;
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TRACE("ps2: standard_mouse_open %s\n", name);
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for (dev = NULL, i = 0; i < PS2_DEVICE_COUNT; i++) {
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if (0 == strcmp(ps2_device[i].name, name)) {
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dev = &ps2_device[i];
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break;
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}
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/*if (0 == strcmp(g_passthrough_dev.name, name)) {
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dev = &g_passthrough_dev;
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isSynapticsPTDevice = true;
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break;
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}*/
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}
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if (dev == NULL) {
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TRACE("ps2: dev = NULL\n");
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return B_ERROR;
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}
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if (atomic_or(&dev->flags, PS2_FLAG_OPEN) & PS2_FLAG_OPEN)
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return B_BUSY;
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cookie = malloc(sizeof(standard_mouse_cookie));
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if (cookie == NULL)
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goto err1;
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*_cookie = cookie;
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memset(cookie, 0, sizeof(*cookie));
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cookie->dev = dev;
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dev->cookie = cookie;
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dev->disconnect = &standard_mouse_disconnect;
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dev->handle_int = &standard_mouse_handle_int;
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if (strstr(dev->name, "standard_mouse") != NULL)
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cookie->flags = F_pointing_dev_TYPE_STANDARD;
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if (strstr(dev->name, "intelli_mouse") != NULL)
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cookie->flags = F_pointing_dev_TYPE_INTELLIMOUSE;
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cookie->standard_mouse_buffer
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= create_packet_buffer(standard_mouse_HISTORY_SIZE * dev->packet_size);
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if (cookie->standard_mouse_buffer == NULL) {
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TRACE("ps2: can't allocate mouse actions buffer\n");
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goto err2;
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}
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// create the mouse semaphore, used for synchronization between
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// the interrupt handler and the read operation
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cookie->standard_mouse_sem = create_sem(0, "ps2_standard_mouse_sem");
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if (cookie->standard_mouse_sem < 0) {
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TRACE("ps2: failed creating PS/2 mouse semaphore!\n");
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goto err3;
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}
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status = ps2_dev_command(dev, PS2_CMD_ENABLE, NULL, 0, NULL, 0);
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if (status < B_OK) {
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INFO("ps2: cannot enable mouse %s\n", name);
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goto err4;
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}
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atomic_or(&dev->flags, PS2_FLAG_ENABLED);
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TRACE("ps2: standard_mouse_open %s success\n", name);
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return B_OK;
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err4:
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delete_sem(cookie->standard_mouse_sem);
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err3:
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delete_packet_buffer(cookie->standard_mouse_buffer);
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err2:
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free(cookie);
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err1:
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atomic_and(&dev->flags, ~PS2_FLAG_OPEN);
|
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TRACE("ps2: standard_mouse_open %s failed\n", name);
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return B_ERROR;
|
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}
|
||||
|
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|
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status_t
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standard_mouse_close(void *_cookie)
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{
|
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standard_mouse_cookie *cookie = (standard_mouse_cookie*)_cookie;
|
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TRACE("ps2: standard_mouse_close %s enter\n", cookie->dev->name);
|
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ps2_dev_command_timeout(cookie->dev, PS2_CMD_DISABLE, NULL, 0, NULL, 0,
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150000);
|
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delete_packet_buffer(cookie->standard_mouse_buffer);
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delete_sem(cookie->standard_mouse_sem);
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atomic_and(&cookie->dev->flags, ~PS2_FLAG_OPEN);
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atomic_and(&cookie->dev->flags, ~PS2_FLAG_ENABLED);
|
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|
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TRACE("ps2: standard_mouse_close %s done\n", cookie->dev->name);
|
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return B_OK;
|
||||
}
|
||||
|
||||
|
||||
status_t
|
||||
standard_mouse_freecookie(void *_cookie)
|
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{
|
||||
standard_mouse_cookie *cookie = (standard_mouse_cookie*)_cookie;
|
||||
free(cookie);
|
||||
return B_OK;
|
||||
}
|
||||
|
||||
|
||||
static status_t
|
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standard_mouse_read(void *cookie, off_t pos, void *buffer, size_t *_length)
|
||||
{
|
||||
*_length = 0;
|
||||
return B_NOT_ALLOWED;
|
||||
}
|
||||
|
||||
|
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static status_t
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standard_mouse_write(void *cookie, off_t pos, const void *buffer,
|
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size_t *_length)
|
||||
{
|
||||
*_length = 0;
|
||||
return B_NOT_ALLOWED;
|
||||
}
|
||||
|
||||
|
||||
status_t
|
||||
standard_mouse_ioctl(void *_cookie, uint32 op, void *buffer, size_t length)
|
||||
{
|
||||
standard_mouse_cookie *cookie = (standard_mouse_cookie*)_cookie;
|
||||
|
||||
switch (op) {
|
||||
case MS_NUM_EVENTS:
|
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{
|
||||
int32 count;
|
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TRACE("ps2: ioctl MS_NUM_EVENTS\n");
|
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get_sem_count(cookie->standard_mouse_sem, &count);
|
||||
return count;
|
||||
}
|
||||
|
||||
case MS_READ:
|
||||
{
|
||||
mouse_movement movement;
|
||||
status_t status;
|
||||
TRACE("ps2: ioctl MS_READ\n");
|
||||
if ((status = standard_mouse_read_event(cookie, &movement)) < B_OK)
|
||||
return status;
|
||||
// TRACE("%s %d %d %d %d\n", cookie->dev->name,
|
||||
// movement.xdelta, movement.ydelta, movement.buttons,
|
||||
// movement.clicks);
|
||||
return user_memcpy(buffer, &movement, sizeof(movement));
|
||||
}
|
||||
|
||||
case MS_SET_TYPE:
|
||||
TRACE("ps2: ioctl MS_SET_TYPE not implemented\n");
|
||||
return B_BAD_VALUE;
|
||||
|
||||
case MS_SET_MAP:
|
||||
TRACE("ps2: ioctl MS_SET_MAP (set mouse mapping) not "
|
||||
"implemented\n");
|
||||
return B_BAD_VALUE;
|
||||
|
||||
case MS_GET_ACCEL:
|
||||
TRACE("ps2: ioctl MS_GET_ACCEL (get mouse acceleration) not "
|
||||
"implemented\n");
|
||||
return B_BAD_VALUE;
|
||||
|
||||
case MS_SET_ACCEL:
|
||||
TRACE("ps2: ioctl MS_SET_ACCEL (set mouse acceleration) not "
|
||||
"implemented\n");
|
||||
return B_BAD_VALUE;
|
||||
|
||||
case MS_SET_CLICKSPEED:
|
||||
TRACE("ps2: ioctl MS_SETCLICK (set click speed)\n");
|
||||
return user_memcpy(&cookie->click_speed, buffer, sizeof(bigtime_t));
|
||||
|
||||
default:
|
||||
TRACE("ps2: ioctl unknown mouse opcode: %ld\n", op);
|
||||
return B_BAD_VALUE;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
device_hooks gStandardMouseDeviceHooks = {
|
||||
standard_mouse_open,
|
||||
standard_mouse_close,
|
||||
standard_mouse_freecookie,
|
||||
standard_mouse_ioctl,
|
||||
standard_mouse_read,
|
||||
standard_mouse_write,
|
||||
};
|
||||
Loading…
Reference in New Issue
Block a user